Sound localization in patients with cochlear implant--preliminary results.

Objectives: To evaluate sound localization ability in patients with unilateral cochlear implant, who do not wear a hearing aid on the contralateral ear, and to try to improve this ability by training.

Setting: Tertiary academic referral center.

Methods: In the initial test, patients were exposed to sound stimuli from different directions and were asked to localize them.

Cochlear implantation in healthy and otitis-prone children: a prospective study.

Objective: To evaluate and compare the timing of surgery, intraoperative findings, and otitis media-related outcome of cochlear implantation in children who are otitis-prone with their counterparts who are not otitis-prone.

Study Design: Prospective.

Methods: Children referred for cochlear implantation were assigned to a non-otitis-prone group (group A: normal otoscopy on their first visit after referral) or an otitis-prone group (group B: current or a recent history of otitis media at referral).

Correlations between audiogram and objective hearing tests in sensorineural hearing loss.

Owing to its subjective nature, behavioral pure-tone audiometry often is an unreliable testing method in uncooperative subjects, and assessing the true hearing threshold becomes difficult. In such cases, objective tests are used for hearing-threshold determination (i.e.

The precision level of the objective hearing tests.

A comparative study was performed with 51 patients, using the stapedial reflex (ART), early auditory brain-stem responses (ABR), later auditory evoked potentials (SN10) and the audiogram, to assess the value of objective tests in the evaluation of the auditory level. The ABR and the SN10 are valid to determine the level of hearing. The ART s of limited value.

Perilymphatic fistula--the value of diagnostic tests.

Perilymphatic fistula (PLF) remains one of the most challenging problems in otological practice. Fifty-two consecutive patients (53 ears) who underwent explorative tympanotomy for suspected PLF between 1985-1992 were included in this study. The clinical picture, history, patients' complaints and laboratory tests were analysed and compared with the operative findings.